Analysis of the coated and textured ring/liner conjunction based on a thermal mixed lubrication model

For the ring/liner conjunction, well-designed surface texturing has been regarded as a potential means to improve its tribological performance, as well as the application of coating. However, so far most researchers focused on the one of these aspects. In this study, the combined effect of coating a...

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Bibliographic Details
Published in:Friction 2018-12, Vol.6 (4), p.420-431
Main Authors: Gu, Chunxing, Meng, Xianghui, Zhang, Di
Format: Article
Language:English
Subjects:
Coating effects
Corrosion and Coatings
Engineering
Friction
Lubrication
Mathematical models
Mechanical Engineering
Mechanical properties
Nanotechnology
Physical Chemistry
piston ring
Research Article
Studies
surface coating
surface texturing
Surfaces and Interfaces
Texturing
thermal mixed lubrication
Thermodynamic properties
Thin Films
tribological performance
Tribology
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Summary:For the ring/liner conjunction, well-designed surface texturing has been regarded as a potential means to improve its tribological performance, as well as the application of coating. However, so far most researchers focused on the one of these aspects. In this study, the combined effect of coating and texturing on the performance of ring/liner conjunction is numerically investigated. A thermal mixed lubrication model is presented. The effects of the coating’s thermal and mechanical properties on the tribological performance are studied under the cold and warm engine operating conditions. Along with the increasing coating thickness, the effects of the coating’s thermal properties on friction loss are found to be significant, as well as the effects of the coating’s mechanical properties. It is also found that a soft coating with a lower thermal inertia has a greater ability to reduce the friction loss of the textured conjunction.
ISSN:2223-7690
2223-7704
DOI:10.1007/s40544-017-0176-4